The roly-poly or pill bugs do not harm humans or other animals. They like to live in humid environments, as they require high moisture. They are most active at night, but when they are resting during the day, they like to be under trash, rocks, boards, under decaying vegetation, or just beneath the soil surface. Because roly-poly are very dependent on moisture, it is very difficult for them to survive indoors for longer than a few days.If you can find a place in your house where the roly-poly have the right environment to survive, they you can keep them indoors. Try to look for a special cage in a pets store, you might find something that helps the roly-poly to be comfortable to live and reproduce.